[Perf] Windows/x64: 2 Regressions on 8/12/2026 9:10:56 AM +00:00

### Run Information

Name | Value
-- | --
Architecture | x64
OS | Windows 10.0.22631
Queue | ViperWindows
Baseline | [10d231dd86555cc17a757c800d821ad8e0f459d5](https://github.com/dotnet/sdk/commit/10d231dd86555cc17a757c800d821ad8e0f459d5)
Compare | [64a29867c5c5c8e0babc9e31313cf3b6e50f0193](https://github.com/dotnet/sdk/commit/64a29867c5c5c8e0babc9e31313cf3b6e50f0193)
Diff | [Diff](https://github.com/dotnet/sdk/compare/10d231dd86555cc17a757c800d821ad8e0f459d5...64a29867c5c5c8e0babc9e31313cf3b6e50f0193)
Configs | CompilationMode:tiered, RunKind:bepuphysics

### Regressions in DemoBenchmarks.TwoBodyConstraintBenchmarks

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|

• [SwingLimit - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 47.37 μs | 61.33 μs | 1.29 | 0.00 | True | | |
|

• [LinearAxisServo - Duration of single invocation]()
• 📝 - [Benchmark Source]()
• [ADX - Test Multi Config Graph]()

| 86.93 μs | 100.08 μs | 1.15 | 0.00 | True | | |

![graph]()
![graph]()
[Test Report]()

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
py .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'DemoBenchmarks.TwoBodyConstraintBenchmarks*'
```

### DemoBenchmarks.TwoBodyConstraintBenchmarks.SwingLimit

#### ETL Files

#### Histogram

#### JIT Disasms

### DemoBenchmarks.TwoBodyConstraintBenchmarks.LinearAxisServo

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

Start with TwoBodyConstraintBenchmarks.cs at the SwingLimit and LinearAxisServo ranges linked in the issue, then reproduce with the provided benchmarks_ci.py command on Windows/x64. Compare the baseline and test commits and use the linked performance reports to identify the regressions. Done means the benchmark regressions are explained and a validated change removes them without introducing new regressions.

Written by the indexing model from the issue text.